add ref attribute type

2025-08-25 03:51:34 +00:00 · 2025-08-25 03:51:34 +00:00 · 2d4234c6a0
commit 2d4234c6a0
parent fb544a455c
21 changed files with 1497 additions and 206 deletions
--- a/internal/data/originator.go
+++ b/internal/data/originator.go
@ -0,0 +1,13 @@
+// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
+
+package data
+
+import (
+)
+
+var (
+)
+
+type Originator interface {
+	GetContentReadWriter() ContentReadWriter
+}
--- a/internal/data/resource.go
+++ b/internal/data/resource.go
@ -38,7 +38,6 @@ type Resource interface {
 	Crudder
 	Validator
 	Clone() Resource
-	SetResourceMapper(ResourceMapper)
 }

 type Declaration interface {
--- a/internal/folio/declaration.go
+++ b/internal/folio/declaration.go
@ -73,7 +73,7 @@ func (d *Declaration) SetDocument(newDocument *Document) {
 	d.document = newDocument
 	d.SetConfig(d.document.config)
 	d.ResourceTypes = d.document.Types()
-	d.Attributes.SetResourceMapper(d.document.uris)
+	d.Attributes.(ResourceMapSetter).SetResourceMapper(d.document.uris)
 }

 func (d *Declaration) ResolveId(ctx context.Context) string {
@ -209,6 +209,11 @@ func (d *Declaration) Apply(stateTransition string) (result error) {
 			return result
 		}
 		result = stater.Trigger("read")
+	case "restart": // XXX should only work for a process type resource
+		if result = stater.Trigger("restart"); result != nil {
+			return result
+		}
+		result = stater.Trigger("read")
 	default:
 		return fmt.Errorf("%w: %s on %s", ErrUnknownStateTransition, stateTransition, d.Attributes.URI())
 	case "create", "present":
@ -249,7 +254,7 @@ func (d *Declaration) SetConfig(configDoc data.Document) {
 		return
 	}
 	if d.Config != "" { // XXX
-		panic(fmt.Sprintf("failed setting config: %s", d.Config))
+		panic(fmt.Errorf("%w: failed setting config: %s", data.ErrConfigUndefined, d.Config))
 	}
 }

@ -396,6 +401,10 @@ func (d *Declaration) UnmarshalJSON(jsonData []byte) (err error) {
 	return
 }

+func (d *Declaration) GetContentReadWriter() data.ContentReadWriter {
+	return d.Resource().(data.ContentReadWriter)
+}
+
 /*
 func (l *LuaWorker) Receive(m message.Envelope) {
  s := m.Sender()
--- a/internal/folio/document.go
+++ b/internal/folio/document.go
@ -37,7 +37,7 @@ type Document struct {
 	Requires Dependencies `json:"requires,omitempty" yaml:"requires,omitempty"`
 	Imports []URI `json:"imports,omitempty" yaml:"imports,omitempty"`
 	Errors   []string `json:"error,omitempty" yaml:"error,omitempty"`
-	uris mapper.Store[string, data.Declaration]
+	uris mapper.Store[URI, *Declaration]
 	ResourceDeclarations []*Declaration `json:"resources,omitempty" yaml:"resources,omitempty"`
 	configNames mapper.Store[string, data.Block] `json:"-" yaml:"-"`
 	Configurations []*Block `json:"configurations,omitempty" yaml:"configurations,omitempty"`
@ -57,7 +57,7 @@ func NewDocument(r *Registry) *Document {
 	return &Document{
 		Registry: r,
 		Format: codec.FormatYaml,
-		uris: mapper.New[string, data.Declaration](),
+		uris: mapper.New[URI, *Declaration](),
 		configNames: mapper.New[string, data.Block](),
 		importPaths: NewSearchPath(configImportPath.GetStringSlice()),
 	 }
@ -111,24 +111,24 @@ func (d *Document) Filter(filter data.DeclarationSelector) []data.Declaration {
 }

 func (d *Document) Has(key string) bool {
-	return d.uris.Has(key)
+	return d.uris.Has(URI(key))
 }

 func (d *Document) Get(key string) (any, bool) {
-	return d.uris.Get(key)
+	return d.uris.Get(URI(key))
 }

 func (d *Document) Set(key string, value any) {
-	d.uris.Set(key, value.(data.Declaration))
+	d.uris.Set(URI(key), value.(*Declaration))
 }

 func (d *Document) Delete(key string) {
-	d.uris.Delete(key)
+	d.uris.Delete(URI(key))
 }

 func (d *Document) GetResource(uri string) *Declaration {
-	if decl, ok := d.uris[uri]; ok {
-		return decl.(*Declaration)
+	if decl, ok := d.uris[URI(uri)]; ok {
+		return decl
 	}
 	return nil
 }
@ -236,17 +236,17 @@ func (d *Document) GetSchemaFiles() (schemaFs fs.FS) {
 		return
 	}
 	schemaFs, _  = d.Registry.Schemas.Get(d.Registry.DefaultSchema)
-	slog.Info("Document.GetSchemaFiles()", "schemaFs", schemaFs)
+	slog.Info("Document.GetSchemaFiles() default schema", "schema", d.Registry.DefaultSchema, "schemaFs", schemaFs)
 	return
 }

 func (d *Document) Validate() error {
 	jsonDocument, jsonErr := d.JSON()
-	slog.Info("Document.Validate() json", "err", jsonErr)
+	slog.Info("Document.Validate() convert to json", "err", jsonErr)
 	if jsonErr == nil {
 		s := schema.New("document", d.GetSchemaFiles())
 		err := s.Validate(string(jsonDocument))
-		slog.Info("Document.Validate()", "error", err)
+		slog.Info("Document.Validate() validate schema", "error", err)
 		if err != nil {
 			return err
 		}
@ -356,12 +356,12 @@ func (d *Document) MapConfigurationURI(uri string, block data.Block) {
 }
 */

-func (d *Document) MapResourceURI(uri string, declaration data.Declaration) {
-	d.uris[uri] = declaration
+func (d *Document) MapResourceURI(uri string, declaration *Declaration) {
+	d.uris[URI(uri)] = declaration
 }

 func (d *Document) UnMapResourceURI(uri string) {
-	d.uris.Delete(uri)
+	d.uris.Delete(URI(uri))
 }

 func (d *Document) AddDeclaration(declaration data.Declaration) {
@ -371,7 +371,7 @@ func (d *Document) AddDeclaration(declaration data.Declaration) {

 		d.ResourceDeclarations = append(d.ResourceDeclarations, decl)

-		d.MapResourceURI(uri, declaration)
+		d.MapResourceURI(uri, decl)
 		decl.SetDocument(d)
 		d.Registry.DeclarationMap[decl] = d
 	}
@ -597,22 +597,38 @@ func (d *Document) Diff(with data.Document, output io.Writer) (returnOutput stri
 /*
 func (d *Document) UnmarshalValue(value *DocumentType) error {
 	d.Requires = value.Requires
+
 }
 */

+func (d *Document) UnmarshalLoadDependencies() (err error) {
+	defer func() {
+		if r := recover(); r != nil {
+			if err != nil {
+				err = fmt.Errorf("%s - %w", r, err)
+			} else {
+				err = fmt.Errorf("%s", r)
+			}
+		}
+	}()
+	err = d.loadImports()
+	d.assignConfigurationsDocument()
+	d.assignResourcesDocument()
+	return
+}
+
 func (d *Document) UnmarshalYAML(value *yaml.Node) (err error) {
 	type decodeDocument Document
+/*
 	t := &DocumentType{}
 	if unmarshalDocumentErr := value.Decode(t); unmarshalDocumentErr != nil {
 		return unmarshalDocumentErr
 	}
-
+*/
 	if unmarshalResourcesErr := value.Decode((*decodeDocument)(d)); unmarshalResourcesErr != nil {
 		return unmarshalResourcesErr
 	}
-	err = d.loadImports()
-	d.assignConfigurationsDocument()
-	d.assignResourcesDocument()
+	err = d.UnmarshalLoadDependencies()
 	return 
 }

@ -622,12 +638,39 @@ func (d *Document) UnmarshalJSON(data []byte) (err error) {
 	if unmarshalDocumentErr := json.Unmarshal(data, t); unmarshalDocumentErr != nil {
 		return unmarshalDocumentErr
 	}
-	err = d.loadImports()
-	d.assignConfigurationsDocument()
-	d.assignResourcesDocument()
+	err = d.UnmarshalLoadDependencies()
 	return 
 }

 func (d *Document) AddError(e error) {
 	d.Errors = append(d.Errors, e.Error())
 }
+
+func (d *Document) GetContentReadWriter() data.ContentReadWriter {
+	return d.URI
+}
+
+func (d *Document) GetContent(w io.Writer) (contentReader io.ReadCloser, err error) {
+	slog.Info("Document.GetContent()")
+
+	var buf strings.Builder
+	err = codec.FormatYaml.Serialize(d, &buf)
+
+	contentReader = io.NopCloser(strings.NewReader(buf.String()))
+
+	if w != nil {
+		copyBuffer := make([]byte, 32 * 1024)
+		_, writeErr := io.CopyBuffer(w, contentReader, copyBuffer)
+		if writeErr != nil {
+			return nil, fmt.Errorf("File.GetContent(): CopyBuffer failed %v %v: %w", w, contentReader, writeErr)
+		}
+		return nil, nil
+	}
+
+	return
+}
+
+func (d *Document) SetContent(r io.Reader) error {
+	return d.LoadReader(io.NopCloser(r), codec.FormatYaml)
+}
+
--- a/internal/folio/mock_foo_resource_test.go
+++ b/internal/folio/mock_foo_resource_test.go
@ -8,6 +8,7 @@ _	"gopkg.in/yaml.v3"
 	"gitea.rosskeen.house/rosskeen.house/machine"
 	"decl/internal/codec"
 	"decl/internal/data"
+	"decl/internal/transport"
 	"io"
 	"net/url"
 	"path/filepath"
@ -89,9 +90,10 @@ func NewMockResource(typename string, stater machine.Stater) (m *MockResource) {
 		InjectUpdate: func(context.Context) error { return nil },
 		InjectDelete: func(context.Context) error { return nil },
 		InjectUseConfig: func(data.ConfigurationValueGetter) {},
-		InjectSetResourceMapper: func(data.ResourceMapper) {},
+		InjectSetResourceMapper: func(ResourceMapper) {},
 		InjectURI: func() string { return fmt.Sprintf("%s://bar", typename) },
 		InjectNotify: func(*machine.EventMessage) {},
+		InjectContentReaderStream: func() (*transport.Reader, error) { return nil, nil },
 	}
 	m.InjectInit = func(u data.URIParser) error { 
 		if u != nil {
--- a/internal/folio/mock_resource_test.go
+++ b/internal/folio/mock_resource_test.go
@ -11,6 +11,7 @@ _	"fmt"
 	"decl/internal/data"
 	"decl/internal/codec"
 	"io"
+	"decl/internal/transport"
 )

 type MockResource struct {
@ -34,9 +35,11 @@ type MockResource struct {
 	InjectUpdate func(context.Context) error `json:"-" yaml:"-"`
 	InjectDelete func(context.Context) error `json:"-" yaml:"-"`
 	InjectStateMachine func() machine.Stater `json:"-" yaml:"-"`
-	InjectSetResourceMapper func(data.ResourceMapper) `json:"-" yaml:"-"`
+	InjectSetResourceMapper func(ResourceMapper) `json:"-" yaml:"-"`
 	InjectUseConfig func(data.ConfigurationValueGetter) `json:"-" yaml:"-"`
 	InjectNotify func(*machine.EventMessage) `json:"-" yaml:"-"`
+	InjectContentReaderStream func() (*transport.Reader, error) `json:"-" yaml:"-"`
+	InjectContentWriterStream func() (*transport.Writer, error) `json:"-" yaml:"-"`
 }

 func (m *MockResource) Clone() data.Resource {
@ -67,7 +70,7 @@ func (m *MockResource) ResolveId(ctx context.Context) string {
  return m.InjectResolveId(ctx)
 }

-func (m *MockResource) SetResourceMapper(rm data.ResourceMapper) {
+func (m *MockResource) SetResourceMapper(rm ResourceMapper) {
 	m.InjectSetResourceMapper(rm)
 }

@ -139,6 +142,14 @@ func (m *MockResource) Notify(em *machine.EventMessage) {
 	m.InjectNotify(em)
 }

+func (m *MockResource) ContentReaderStream() (*transport.Reader, error) {
+	return m.InjectContentReaderStream()
+}
+
+func (m *MockResource) ContentWriterStream() (*transport.Writer, error) {
+	return m.InjectContentWriterStream()
+}
+
 func (m *MockResource) UnmarshalJSON(data []byte) error {
  if err := json.Unmarshal(data, m); err != nil {
    return err
--- a/internal/folio/ref.go
+++ b/internal/folio/ref.go
@ -0,0 +1,229 @@
+// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
+
+package folio
+
+import (
+	"encoding/json"
+	"gopkg.in/yaml.v3"
+	"decl/internal/mapper"
+	"decl/internal/data"
+	"decl/internal/transport"
+	"net/url"
+	"log/slog"
+	"errors"
+	"fmt"
+	"io"
+)
+
+var (
+	ErrRefMapperMismatch = errors.New("Ref type does not the provided mapper")
+)
+
+type Ref struct {
+	Uri		URI		`json:"uri" yaml:"uri"`
+	RefType		ReferenceType	`json:"type,omitempty" yaml:"type,omitempty"`
+	documentMapper	mapper.Store[URI, *Document]
+	resourceMapper	mapper.Store[URI, *Declaration]
+}
+
+type decodeRef Ref
+
+func NewRef() *Ref {
+	return &Ref {
+		
+	}
+}
+
+func (r *ReferenceType) UnmarshalValue(value string) error {
+	switch value {
+	case string(ReferenceTypeResource), string(ReferenceTypeDocument):
+		*r = ReferenceType(value)
+	default:
+		*r = ReferenceTypeResource
+		//return ErrInvalidReferenceType
+	}
+	return nil
+}
+
+func (r *ReferenceType) UnmarshalJSON(jsonData []byte) error {
+	var s string
+	if unmarshalReferenceTypeErr := json.Unmarshal(jsonData, &s); unmarshalReferenceTypeErr != nil {
+		return unmarshalReferenceTypeErr
+	}
+	return r.UnmarshalValue(s)
+}
+
+func (r *ReferenceType) UnmarshalYAML(value *yaml.Node) error {
+	var s string
+	if err := value.Decode(&s); err != nil {
+		return err
+	}
+	return r.UnmarshalValue(s)
+}
+
+func (r *Ref) UnmarshalValue(value *decodeRef) error {
+	slog.Info("Ref.UnmarshalValue", "decode", value)
+	r.Uri = value.Uri
+	switch value.RefType {
+	case ReferenceTypeResource:
+		r.RefType = value.RefType
+	case ReferenceTypeDocument:
+		r.RefType = value.RefType
+		r.SetMapper(DocumentRegistry.UriMap)
+	default:
+		r.RefType = ReferenceTypeResource
+		//return ErrInvalidReferenceType
+	}
+	slog.Info("Ref.UnmarshalValue", "stored", *r)
+	return nil
+}
+
+func (r *Ref) UnmarshalJSON(jsonData []byte) error {
+	decodeJsonToRef := &decodeRef{}
+	if unmarshalReferenceTypeErr := json.Unmarshal(jsonData, decodeJsonToRef); unmarshalReferenceTypeErr != nil {
+		return unmarshalReferenceTypeErr
+	}
+	return r.UnmarshalValue(decodeJsonToRef)
+}
+
+func (r *Ref) UnmarshalYAML(value *yaml.Node) error {
+	decodeYamlToRef := &decodeRef{}
+	if err := value.Decode(decodeYamlToRef); err != nil {
+		return err
+	}
+	return r.UnmarshalValue(decodeYamlToRef)
+}
+
+func (r *Ref) SetMapper(m any) error {
+	var ok bool
+	switch r.RefType {
+	case ReferenceTypeResource:
+		if r.resourceMapper, ok = m.(mapper.Store[URI, *Declaration]); ! ok {
+			return fmt.Errorf("%w - %T is not a %s", ErrRefMapperMismatch, m, r.RefType)
+		}
+	case ReferenceTypeDocument:
+		if r.documentMapper, ok = m.(mapper.Store[URI, *Document]); ! ok {
+			return fmt.Errorf("%w - %T is not a %s", ErrRefMapperMismatch, m, r.RefType)
+		}
+	}
+	return nil
+}
+
+func Dereference[T ReferenceTypes](uri URI, look mapper.Map[URI, T]) T {
+	if uri != "" && look != nil {
+		if v, ok := look.Get(uri); ok {
+			slog.Info("Ref::Dereference()", "value", v, "mapper", look)
+			return v
+		}
+	}
+	return nil
+}
+
+func (r *Ref) Lookup(look any) ContentReadWriter {
+	slog.Info("Ref.Lookup()", "ref", r, "mapper", look)
+	switch r.RefType {
+	case ReferenceTypeResource:
+		if resourceDeclaration := Dereference(r.Uri, look.(mapper.Store[URI, *Declaration])); resourceDeclaration != nil {
+			return resourceDeclaration.GetContentReadWriter()
+		}
+	case ReferenceTypeDocument:
+		if document := Dereference(r.Uri, look.(mapper.Store[URI, *Document])); document != nil {
+			return document.GetContentReadWriter()
+		}
+	}
+	return r.Uri
+}
+
+func (r *Ref) Dereference(look any) any {
+	switch r.RefType {
+	case ReferenceTypeResource:
+		if look == nil {
+			return Dereference(r.Uri, r.resourceMapper)
+		} else {
+			return Dereference(r.Uri, look.(mapper.Store[URI, *Declaration]))
+		}
+	case ReferenceTypeDocument:
+		if look == nil {
+			return Dereference(r.Uri, r.documentMapper)
+		} else {
+			return Dereference(r.Uri, look.(mapper.Store[URI, *Document]))
+		}
+	}
+	return nil
+}
+
+func (r *Ref) DereferenceDefault() any {
+	switch r.RefType {
+	case ReferenceTypeResource:
+		return Dereference(r.Uri, r.resourceMapper)
+	case ReferenceTypeDocument:
+		return Dereference(r.Uri, r.documentMapper)
+	}
+	return nil
+}
+
+func (r *Ref) Parse() data.URIParser {
+	return r.Uri.Parse()
+}
+
+func (r *Ref) Exists() bool {
+	return r.Uri.Exists()
+}
+
+func (r *Ref) ContentReaderStream() (*transport.Reader, error) {
+	return r.Uri.ContentReaderStream()
+}
+
+func (r *Ref) ContentWriterStream() (*transport.Writer, error) {
+	return r.Uri.ContentWriterStream()
+}
+
+func (r *Ref) GetContent(w io.Writer) (contentReader io.ReadCloser, err error) {
+	target := r.DereferenceDefault()
+	if targetContent, ok := target.(data.ContentGetSetter); ok {
+		return targetContent.GetContent(w)
+	}
+	return nil, fmt.Errorf("Ref target does not support ContentGetSetter: %s, %s, %#v", r.RefType, r.Uri, target)
+}
+
+func (r *Ref) SetContent(contentReader io.Reader) error {
+	target := r.DereferenceDefault()
+	if targetContent, ok := target.(data.ContentGetSetter); ok {
+		return targetContent.SetContent(contentReader)
+	}
+	return fmt.Errorf("Ref target does not support ContentGetSetter: %s, %s, %#v", r.RefType, r.Uri, target)
+}
+
+func (r *Ref) Reader() (reader io.ReadCloser, err error) {
+	switch r.RefType {
+	case ReferenceTypeResource:
+		return r.ContentReaderStream()
+	case ReferenceTypeDocument:
+		reader, err = r.GetContent(nil)
+		if reader == nil {
+			return r.ContentReaderStream()
+		}
+		return
+	}
+	return nil, ErrInvalidReferenceType
+}
+
+func (r *Ref) String() string {
+	return r.Uri.String()
+}
+
+func (r *Ref) SetURL(url *url.URL) {
+	r.Uri.SetURL(url)
+}
+
+func (r *Ref) Extension() (string, string) {
+	return r.Uri.Extension()
+}
+
+func (r *Ref) IsEmpty() bool {
+	return r.Uri.IsEmpty()
+}
+
+func (r *Ref) FindIn(s *SearchPath) {
+	r.Uri.FindIn(s)
+}
--- a/internal/folio/ref_test.go
+++ b/internal/folio/ref_test.go
@ -0,0 +1,67 @@
+// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
+
+package folio
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+	"fmt"
+_	"decl/internal/data"
+	"decl/internal/mapper"
+	"decl/internal/codec"
+	"log/slog"
+	"strings"
+	"io"
+)
+
+func TestReference(t *testing.T) {
+	f := NewFooResource()
+	resourceMapper := mapper.New[URI, *Declaration]()
+	f.Name = string(TempDir)
+	f.Size = 10
+	f.MockResource.InjectURI = func() string { return fmt.Sprintf("%s://%s", "foo", f.Name) }
+	d := NewDeclaration()
+	d.Type = "foo"
+	d.Attributes = f
+	resourceMapper[URI(d.URI())] = d
+	slog.Info("TestReference", "declaration", d, "mapper", resourceMapper)
+
+	var fooRef *Ref = NewRef()
+	fooRef.RefType = ReferenceTypeResource
+	fooRef.Uri = URI(fmt.Sprintf("foo://%s", string(TempDir)))
+	u := fooRef.Uri.Parse().URL()
+	assert.Equal(t, "foo", u.Scheme)
+	assert.True(t, fooRef.Uri.Exists())
+
+	fromRef := fooRef.Lookup(resourceMapper)
+	assert.NotNil(t, fromRef)
+}
+
+func TestDocumentRef(t *testing.T) {
+	docUri := fmt.Sprintf("file://%s/doc.yaml", TempDir)
+	DocumentRegistry.ResourceTypes = TestResourceTypes
+	document := `
+---
+resources:
+- type: foo
+  attributes:
+    name: "testfoo"
+    size: 10022
+`
+	TempDir.CreateFile("doc.yaml", document)
+
+	d := DocumentRegistry.NewDocument(URI(docUri))
+	assert.NotNil(t, d)
+	docReader := io.NopCloser(strings.NewReader(document))
+
+	e := d.LoadReader(docReader, codec.FormatYaml)
+	assert.Nil(t, e)
+
+	var docRef *Ref = NewRef()
+	docRef.RefType = ReferenceTypeDocument
+	docRef.Uri = URI(docUri)
+	u := docRef.Uri.Parse().URL()
+	assert.Equal(t, "file", u.Scheme)
+	
+	assert.Equal(t, d, docRef.Dereference(DocumentRegistry.UriMap).(*Document))
+}
--- a/internal/folio/registry.go
+++ b/internal/folio/registry.go
@ -60,7 +60,8 @@ func (r *Registry) HasDocument(key URI) bool {
 }

 func (r *Registry) GetDocument(key URI) (*Document, bool) {
-	return r.UriMap.Get(key)
+	document, result := r.UriMap.Get(key)
+	return document, result
 }

 func (r *Registry) SetDocument(key URI, value *Document) {
@ -72,7 +73,7 @@ func (r *Registry) NewDocument(uri URI) (doc *Document) {
 	doc.SetURI(string(uri))
 	r.Documents = append(r.Documents, doc)
 	if uri != "" {
-		r.UriMap[uri] = doc
+		r.UriMap.Set(uri, doc)
 	}
 	return
 }
--- a/internal/folio/resourcereference.go
+++ b/internal/folio/resourcereference.go
@ -5,6 +5,7 @@ package folio
 import (
 	"decl/internal/transport"
 	"decl/internal/data"
+	"decl/internal/mapper"
 	"errors"
 	"log/slog"
 	"net/url"
@ -31,25 +32,26 @@ type ContentReadWriter interface {
 type ResourceReference URI

 // Return a Content ReadWriter for the resource referred to.
-func (r ResourceReference) Lookup(look data.ResourceMapper) ContentReadWriter {
+func (r ResourceReference) Lookup(look mapper.Map[URI, *Declaration]) ContentReadWriter {
 	if string(r) == "" {
 		return nil
 	}
 	slog.Info("ResourceReference.Lookup()", "resourcereference", r, "resourcemapper", look)
 	if look != nil {
-		if v,ok := look.Get(string(r)); ok {
+		if v,ok := look.Get(URI(r)); ok {
+			slog.Info("ResourceReference.Lookup()", "resourcereference", r, "result", v.Resource())
 			return v.Resource().(ContentReadWriter)
 		}
 	}
 	return r
 }

-func (r ResourceReference) Dereference(look data.ResourceMapper) data.Resource {
+func (r ResourceReference) Dereference(look mapper.Map[URI, *Declaration]) data.Resource {
 	slog.Info("ResourceReference.Dereference()", "resourcereference", r, "resourcemapper", look)
 	if look != nil {
-		if v,ok := look.Get(string(r)); ok {
+		if v,ok := look.Get(URI(r)); ok {
 			slog.Info("ResourceReference.Dereference()", "resourcereference", r, "result", v)
-			return v.(*Declaration).Attributes
+			return v.Attributes
 		}
 	}
 	return nil
@ -74,3 +76,7 @@ func (r ResourceReference) ContentWriterStream() (*transport.Writer, error) {
 func (r ResourceReference) IsEmpty() bool {
 	return URI(r).IsEmpty()
 }
+
+func (r *ResourceReference) FindIn(s *SearchPath) {
+	(*URI)(r).FindIn(s)
+}
--- a/internal/folio/resourcereference_test.go
+++ b/internal/folio/resourcereference_test.go
@ -6,19 +6,18 @@ import (
 	"github.com/stretchr/testify/assert"
 	"testing"
 	"fmt"
-	"decl/internal/data"
 	"decl/internal/mapper"
 )

 func TestResourceReference(t *testing.T) {
 	f := NewFooResource()
-	resourceMapper := mapper.New[string, data.Declaration]()
+	resourceMapper := mapper.New[URI, *Declaration]()
 	f.Name = string(TempDir)
 	f.Size = 10
 	d := NewDeclaration()
 	d.Type = "foo"
 	d.Attributes = f
-	resourceMapper[d.URI()] = d
+	resourceMapper[URI(d.URI())] = d

 	var foo ResourceReference = ResourceReference(fmt.Sprintf("foo://%s", string(TempDir)))
 	u := foo.Parse()
--- a/internal/folio/schemas/ref.schema.json
+++ b/internal/folio/schemas/ref.schema.json
@ -0,0 +1,17 @@
+{
+  "$id": "ref.schema.json",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "ref",
+  "type": "object",
+  "properties": {
+    "type": {
+      "type": "string",
+      "description": "Type of object referred to",
+      "enum": [ "resource", "document" ]
+    },
+    "uri": {
+      "type": "string",
+      "description": "URI of the object referred to"
+    }
+  }
+}
--- a/internal/resource/container_image_test.go
+++ b/internal/resource/container_image_test.go
@ -214,8 +214,8 @@ attributes:
 	_, readErr := contextFile.Resource().Read(context.Background())
 	assert.Nil(t, readErr)

-	c.Resources = data.NewResourceMapper()
-	c.Resources.Set(contextDirUri, contextFile)
+	c.Resources = folio.NewResourceMapper()
+	c.Resources.Set(folio.URI(contextDirUri), contextFile)

 	d, contextErr := c.ContextDocument()
 	assert.Nil(t, contextErr)
--- a/internal/resource/container_test.go
+++ b/internal/resource/container_test.go
@ -5,6 +5,7 @@ package resource
 import (
 	"context"
 	"decl/tests/mocks"
+	"decl/internal/codec"
 _	"encoding/json"
 _	"fmt"
 	"github.com/docker/docker/api/types"
@ -20,6 +21,7 @@ _	"os"
 	"strings"
 	"testing"
 	"bytes"
+	"time"
 )

 func TestNewContainerResource(t *testing.T) {
@ -47,6 +49,9 @@ func TestReadContainer(t *testing.T) {
 					ID:    "123456789abc",
 					Name:  "test",
 					Image: "alpine",
+					State: &types.ContainerState{
+						Status: "running",
+					},
 				}}, nil
 		},
 		InjectContainerWait: func(ctx context.Context, containerID string, condition container.WaitCondition) (<-chan container.WaitResponse, <-chan error) {
@ -62,18 +67,19 @@ func TestReadContainer(t *testing.T) {
 	}

 	c := NewContainer(m)
-	assert.NotEqual(t, nil, c)
+	assert.NotNil(t, c)

 	e := c.LoadDecl(decl)
-	assert.Equal(t, nil, e)
+	assert.Nil(t, e)
 	assert.Equal(t, "testcontainer", c.Name)

 	resourceYaml, readContainerErr := c.Read(ctx)
-	assert.Equal(t, nil, readContainerErr)
+	assert.Nil(t, readContainerErr)
 	assert.Greater(t, len(resourceYaml), 0)
+	assert.Equal(t, "running", c.State)
 }

-func TestCreateContainer(t *testing.T) {
+func TestCreateDeleteContainer(t *testing.T) {
 	m := &mocks.MockContainerClient{
 		InjectContainerCreate: func(ctx context.Context, config *container.Config, hostConfig *container.HostConfig, networkingConfig *network.NetworkingConfig, platform *ocispec.Platform, containerName string) (container.CreateResponse, error) {
 			return container.CreateResponse{ID: "abcdef012", Warnings: []string{}}, nil
@ -148,3 +154,119 @@ func TestContainerLogOutput(t *testing.T) {
 	assert.Equal(t, "done.", c.Stdout)

 }
+
+func TestWaitContainer(t *testing.T) {
+	mockState := &types.ContainerState{
+		Status: "",
+	}
+	m := &mocks.MockContainerClient{
+		InjectContainerInspect: func(ctx context.Context, containerID string) (types.ContainerJSON, error) {
+			return types.ContainerJSON{
+				ContainerJSONBase: &types.ContainerJSONBase{
+					ID:    "abcdef012",
+					Name:  "testcontainer",
+					Image: "alpine",
+					State: mockState,
+				}}, nil
+		},
+		InjectContainerCreate: func(ctx context.Context, config *container.Config, hostConfig *container.HostConfig, networkingConfig *network.NetworkingConfig, platform *ocispec.Platform, containerName string) (container.CreateResponse, error) {
+			mockState.Status = "created"
+			return container.CreateResponse{ID: "abcdef012", Warnings: []string{}}, nil
+		},
+		InjectContainerStop: func(context.Context, string, container.StopOptions) error {
+			return nil
+		},
+		InjectContainerRemove: func(context.Context, string, container.RemoveOptions) error {
+			return nil
+		},
+		InjectContainerWait: func(ctx context.Context, containerID string, condition container.WaitCondition) (<-chan container.WaitResponse, <-chan error) {
+			var res container.WaitResponse
+			resChan := make(chan container.WaitResponse)
+			errChan := make(chan error, 1)
+			go func() { resChan <- res }()
+			return resChan, errChan
+		},
+		InjectContainerLogs: func(ctx context.Context, containerID string, options container.LogsOptions) (io.ReadCloser, error) {
+			return io.NopCloser(strings.NewReader("done.")), nil
+		},
+	}
+	
+	c := NewContainer(m)
+
+	assert.Nil(t, c.LoadString(`
+  name: "testcontainer"
+  image: "alpine"
+  state: present
+`, codec.FormatYaml))
+
+	assert.Nil(t, c.Apply())
+
+	assert.Equal(t, "testcontainer", c.Name)
+	assert.Nil(t, c.wait(context.Background(), func(state *types.ContainerState) bool {
+		return state.Status == "running"
+	}))
+}
+
+func TestRestartContainer(t *testing.T) {
+	mockState := &types.ContainerState{
+		Status: "",
+	}
+	m := &mocks.MockContainerClient{
+		InjectContainerInspect: func(ctx context.Context, containerID string) (types.ContainerJSON, error) {
+			return types.ContainerJSON{
+				ContainerJSONBase: &types.ContainerJSONBase{
+					ID:    "abcdef012",
+					Name:  "testcontainer",
+					Image: "alpine",
+					State: mockState,
+				}}, nil
+		},
+		InjectContainerCreate: func(ctx context.Context, config *container.Config, hostConfig *container.HostConfig, networkingConfig *network.NetworkingConfig, platform *ocispec.Platform, containerName string) (container.CreateResponse, error) {
+			mockState.Status = "created"
+			return container.CreateResponse{ID: "abcdef012", Warnings: []string{}}, nil
+		},
+		InjectContainerStop: func(context.Context, string, container.StopOptions) error {
+			return nil
+		},
+		InjectContainerRemove: func(context.Context, string, container.RemoveOptions) error {
+			return nil
+		},
+		InjectContainerRestart: func(ctx context.Context, containerID string, options container.StopOptions) error {
+			go func() {
+				time.Sleep(100 * time.Millisecond)
+				mockState.Status = "running"
+				mockState.Running = true
+			}()
+			return nil
+		},
+		InjectContainerWait: func(ctx context.Context, containerID string, condition container.WaitCondition) (<-chan container.WaitResponse, <-chan error) {
+			var res container.WaitResponse
+			resChan := make(chan container.WaitResponse)
+			errChan := make(chan error, 1)
+			go func() { resChan <- res }()
+			return resChan, errChan
+		},
+		InjectContainerLogs: func(ctx context.Context, containerID string, options container.LogsOptions) (io.ReadCloser, error) {
+			return io.NopCloser(strings.NewReader("done.")), nil
+		},
+	}
+
+	c := NewContainer(m)
+
+	assert.Nil(t, c.LoadString(`
+  name: "testcontainer"
+  image: "alpine"
+  state: present
+`, codec.FormatYaml))
+
+	assert.Equal(t, "testcontainer", c.Name)
+
+	assert.Nil(t, c.Apply())
+
+	c.State = "present" // overwrite the state
+	c.StateMachine().Trigger("restart")
+
+	assert.Equal(t, "running", c.State)
+
+	assert.Nil(t, c.Apply())
+}
--- a/internal/resource/exec_test.go
+++ b/internal/resource/exec_test.go
@ -35,7 +35,16 @@ func TestExecApplyResourceTransformation(t *testing.T) {
 }

 func TestReadExec(t *testing.T) {
-
+	x := NewExec()
+	decl := `
+  read:
+    path: ls
+    args:
+    - -al
+`
+	assert.Nil(t, x.LoadDecl(decl))
+	assert.Equal(t, "ls", x.ReadTemplate.Path)
+	assert.Equal(t, command.CommandArg("-al"), x.ReadTemplate.Args[0])
 }

 func TestReadExecError(t *testing.T) {
--- a/internal/resource/mock_buffer_resource_test.go
+++ b/internal/resource/mock_buffer_resource_test.go
@ -0,0 +1,34 @@
+// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
+
+package resource
+
+import (
+	"context"
+_	"gopkg.in/yaml.v3"
+	"gitea.rosskeen.house/rosskeen.house/machine"
+	"decl/internal/transport"
+	"decl/internal/ext"
+	"strings"
+	"io"
+)
+
+func NewMockBufferResource(id string, target *strings.Builder) *MockResource {
+	return &MockResource {
+		InjectType: func() string { return "buffer" },
+		InjectResolveId: func(ctx context.Context) string { return id },
+		InjectRead: func(ctx context.Context) ([]byte, error) { return nil,nil },
+		InjectLoadDecl: func(string) error { return nil },
+		InjectApply: func() error { return nil },
+		InjectStateMachine: func() machine.Stater { return nil },
+		InjectContentWriterStream: func() (*transport.Writer, error) {
+			w := &transport.Writer{}
+			w.SetStream(ext.WriteNopCloser(target))
+			return w, nil
+		},
+		InjectContentReaderStream: func() (*transport.Reader, error) {
+			r := &transport.Reader{}
+			r.SetStream(io.NopCloser(strings.NewReader(target.String())))
+			return r, nil
+		},
+	}
+}
--- a/internal/resource/mock_resource_test.go
+++ b/internal/resource/mock_resource_test.go
@ -9,9 +9,13 @@ _ "gopkg.in/yaml.v3"
 _	"fmt"
 	"gitea.rosskeen.house/rosskeen.house/machine"
 	"decl/internal/data"
+	"decl/internal/codec"
+	"decl/internal/transport"
+	"io"
 )

 type MockResource struct {
+	*Common				`json:",inline" yaml:",inline"`
 	InjectURI func() string
 	InjectType func() string
 	InjectResolveId func(ctx context.Context) string
@ -20,6 +24,9 @@ type MockResource struct {
 	InjectApply func() error
 	InjectRead func(context.Context) ([]byte, error)
 	InjectStateMachine func() machine.Stater
+	InjectContentType func() string
+	InjectContentReaderStream func() (*transport.Reader, error)
+	InjectContentWriterStream func() (*transport.Writer, error)
 }

 func (m *MockResource) Clone() data.Resource {
@ -68,3 +75,64 @@ func (m *MockResource) UnmarshalJSON(data []byte) error {
 	}
 	return nil
 }
+
+/*
+func (m *MockResource) SetParsedURI(URIParser) error {
+	return nil
+}
+*/
+
+func (m *MockResource) UseConfig(config data.ConfigurationValueGetter) {
+
+}
+
+func (m *MockResource) LoadString(string, codec.Format) (error) {
+	return nil
+}
+
+func (m *MockResource) Load([]byte, codec.Format) (error) {
+	return nil
+}
+
+func (m *MockResource) LoadReader(io.ReadCloser, codec.Format) (error) {
+	return nil
+}
+
+func (m *MockResource) Create(context.Context) error {
+	return nil
+}
+
+func (m *MockResource) Update(context.Context) error {
+	return nil
+}
+
+func (m *MockResource) Delete(context.Context) error {
+	return nil
+}
+
+func (m *MockResource) ReadStat() error {
+	return nil
+}
+
+func (m *MockResource) ContentType() string {
+	if m.InjectContentType == nil {
+		return ""
+	}
+	return m.InjectContentType()
+}
+
+func (m *MockResource) ContentReaderStream() (*transport.Reader, error) {
+	return m.InjectContentReaderStream()
+}
+
+func (m *MockResource) ContentWriterStream() (*transport.Writer, error) {
+	return m.InjectContentWriterStream()
+}
+
+func (m *MockResource) GetContent(w io.Writer) (contentReader io.ReadCloser, err error) {
+	return nil, nil
+}
+
+func (m *MockResource) SetContent(r io.Reader) error {
+	return nil
+}
--- a/internal/resource/openpgp_signature.go
+++ b/internal/resource/openpgp_signature.go
@ -27,8 +27,11 @@ import (
 )

 var (
+	ErrSignatureFailedDecodingSignature error = errors.New("Failed decoding signature")
 	ErrSignatureWriterFailed error = errors.New("Failed creating signature writer")
 	ErrArmoredWriterFailed error = errors.New("Failed to create armored writer")
+	ErrSignatureVerificationUnknownEntity error = errors.New("Signature uses unknown entity")
+	ErrSignatureMissing error = errors.New("Signature value undefined")
 )

 const (
@ -48,14 +51,17 @@ func init() {
 }

 type OpenPGPSignature struct {
-	*Common	`json:",inline" yaml:",inline"`
+	*Common		`json:"-,inline" yaml:"-,inline"`
 	stater		machine.Stater		`json:"-" yaml:"-"`
 	Signature	string			`json:"signature,omitempty" yaml:"signature,omitempty"`
-	KeyRingRef	folio.ResourceReference `json:"keyringref,omitempty" yaml:"keyringref,omitempty"`
-	SourceRef		folio.ResourceReference `json:"soureref,omitempty" yaml:"sourceref,omitempty"`
-	SignatureRef folio.ResourceReference `json:"signatureref,omitempty" yaml:"signatureref,omitempty"`
+	Signed		string			`json:"signed,omitempty" yaml:"signed,omitempty"`
+	KeyRingRef	folio.Ref		`json:"keyringref,omitempty" yaml:"keyringref,omitempty"`
+	SourceRef	folio.Ref		`json:"soureref,omitempty" yaml:"sourceref,omitempty"`
+	SignatureRef	folio.Ref		`json:"signatureref,omitempty" yaml:"signatureref,omitempty"`

+	signatureBlock *armor.Block
 	message	*openpgp.MessageDetails
+	
 	entityList openpgp.EntityList
 }

@ -90,10 +96,32 @@ func (o *OpenPGPSignature) StateMachine() machine.Stater {
 }

 func (o *OpenPGPSignature) URI() string {
-	return string(o.Common.URI())
+	parsedSourceUri := o.SourceRef.Uri.Parse().URL()
+	return fmt.Sprintf("%s://%s", o.Type(), parsedSourceUri.Host + parsedSourceUri.RequestURI())
+}
+
+func (o *OpenPGPSignature) DecryptPrivateKey(entity *openpgp.Entity) error {
+	if o.config != nil {
+		passphraseConfig, _ := o.config.GetValue("passphrase")
+		passphrase := []byte(passphraseConfig.(string))
+		if len(passphrase) > 0 {
+			slog.Info("OpenPGPSignature.DecryptPrivateKey", "passphrase", passphrase, "entity", entity)
+			if decryptErr := entity.PrivateKey.Decrypt(passphrase); decryptErr != nil {
+				return fmt.Errorf("%w private key: %w", ErrOpenPGPDecryptionFailure, decryptErr)
+			}
+			for _, subkey := range entity.Subkeys {
+				if decryptErr := subkey.PrivateKey.Encrypt(passphrase); decryptErr != nil {
+					return fmt.Errorf("%w subkey (private key): %w", ErrOpenPGPDecryptionFailure, decryptErr)
+				}
+			}
+		}
+	}
+	return nil
 }

 func (o *OpenPGPSignature) SigningEntity() (err error) {
+	if len(o.entityList) < 1 {
+		slog.Info("OpenPGPSignature.SigningEntity() - Loading KeyRing", "keyring", o.KeyRingRef)
 		if o.KeyRingRef.IsEmpty() {
 			var keyringConfig any
 			if keyringConfig, err = o.config.GetValue("keyring"); err == nil {
@ -102,29 +130,60 @@ func (o *OpenPGPSignature) SigningEntity() (err error) {
 		} else {
 			ringFileStream, _ := o.KeyRingRef.Lookup(o.Resources).ContentReaderStream()
 			defer ringFileStream.Close()
+
 			o.entityList, err = openpgp.ReadArmoredKeyRing(ringFileStream)
+			slog.Info("OpenPGPSignature.SigningEntity()", "entities", o.entityList[0])
+		}
+		for i := range o.entityList {
+			if decryptErr := o.DecryptPrivateKey(o.entityList[i]); decryptErr != nil {
+				err = decryptErr
+			}
+		}
 	}
 	return
 }


 func (o *OpenPGPSignature) Sign(message io.Reader, w io.Writer) (err error) {
-	var writer io.WriteCloser
 	entity := o.entityList[0]
-
-	if writer, err = openpgp.Sign(w, entity, nil, o.Config()); err == nil {
-		defer writer.Close()
-		_, err = io.Copy(writer, message)
-	} else {
+	if err = openpgp.DetachSign(w, entity, message, o.Config()); err != nil {
 		err = fmt.Errorf("%w: %w", ErrSignatureWriterFailed, err)
 	}
 	return
 }

+func (o *OpenPGPSignature) Verify(message io.Reader) (err error) {
+	if len(o.Signature) < 1 || o.signatureBlock == nil {
+		return fmt.Errorf("%w - %d", ErrSignatureMissing, len(o.Signature))
+	}
+
+	slog.Info("OpenPGPSignature.Verify()", "signature", o.Signature, "block", o.signatureBlock)
+	var entity *openpgp.Entity
+	entity, err = openpgp.CheckDetachedSignature(o.entityList, message, o.signatureBlock.Body, o.Config())
+	if entity == nil {
+		slog.Info("OpenPGPSignature.Verify() check signature failed", "signature", o.signatureBlock, "err", err)
+		return fmt.Errorf("%w: %w", ErrSignatureVerificationUnknownEntity, err)
+	}
+	return
+}
+
 func (o *OpenPGPSignature) Create(ctx context.Context) (err error) {
 	if err = o.SigningEntity(); err == nil {
 		var sourceReadStream io.ReadCloser
+
+		switch o.SourceRef.RefType {
+		case folio.ReferenceTypeDocument:
+			//sourceReadStream, err = o.SourceRef.Lookup(folio.DocumentRegistry.UriMap).ContentReaderStream()
+			sourceReadStream, err = o.SourceRef.Reader()
+			srcData, _ := io.ReadAll(sourceReadStream)
+			sourceReadStream.Close()
+			o.Signed = string(srcData)
+			sourceReadStream, err = o.SourceRef.Reader()
+		default:
 			sourceReadStream, err = o.SourceRef.Lookup(o.Resources).ContentReaderStream()
+		}
+		defer sourceReadStream.Close()
+
 		var signatureStream, armoredWriter io.WriteCloser

 		if o.SignatureRef.IsEmpty() {
@ -138,9 +197,9 @@ func (o *OpenPGPSignature) Create(ctx context.Context) (err error) {
 		if armoredWriter, err = armor.Encode(signatureStream, openpgp.SignatureType, nil); err != nil {
 			err = fmt.Errorf("%w: %w", ErrArmoredWriterFailed, err)
 		}
-		defer armoredWriter.Close()

 		err = o.Sign(sourceReadStream, armoredWriter)
+		armoredWriter.Close()
 	}
 	return
 }
@ -196,8 +255,10 @@ func (o *OpenPGPSignature) Notify(m *machine.EventMessage) {
 					_ = o.AddError(triggerErr)
 				}
 			} else {
+				slog.Info("OpenPGPSignature.Notify()", "dest", "start_read", "err", readErr)
 				_ = o.AddError(readErr)
 				if o.IsResourceInconsistent() {
+					slog.Info("OpenPGPSignature.Notify()", "dest", "read-failed", "machine", o.StateMachine())
 					if triggerErr := o.StateMachine().Trigger("read-failed"); triggerErr == nil {
 						panic(readErr)
 					} else {
@ -320,16 +381,16 @@ func (o *OpenPGPSignature) ResolveId(ctx context.Context) string {
 }

 func (o *OpenPGPSignature) GetContentSourceRef() string {
-	return string(o.SignatureRef)
+	return o.SignatureRef.String()
 }

 func (o *OpenPGPSignature) SetContentSourceRef(uri string) {
-	o.SignatureRef = folio.ResourceReference(uri)
+	o.SignatureRef.Uri = folio.URI(uri)
 }

 func (o *OpenPGPSignature) SignatureRefStat() (info fs.FileInfo, err error) {
-	err = fmt.Errorf("%w: %s", ErrResourceStateAbsent, o.SignatureRef)
-	if len(o.SignatureRef) > 0 {
+	err = fmt.Errorf("%w: %s", ErrResourceStateAbsent, o.SignatureRef.Uri)
+	if len(o.SignatureRef.Uri) > 0 {
 		rs, _ := o.ContentReaderStream()
 		defer rs.Close()
 		return rs.Stat()
@ -346,6 +407,16 @@ func (o *OpenPGPSignature) ReadStat() (err error) {
 	return err
 }

+func (o *OpenPGPSignature) SourceRefStat() (info fs.FileInfo, err error) {
+	err = fmt.Errorf("%w: %s", ErrResourceStateAbsent, o.SourceRef.Uri)
+	if ! o.SourceRef.IsEmpty() {
+		rs, _ := o.SourceRef.ContentReaderStream()
+		defer rs.Close()
+		return rs.Stat()
+	}
+	return
+}
+
 func (o *OpenPGPSignature) Update(ctx context.Context) error {
 	return o.Create(ctx)
 }
@ -354,7 +425,69 @@ func (o *OpenPGPSignature) Delete(ctx context.Context) error {
 	return os.Remove(o.Common.Path)
 }

-func (o *OpenPGPSignature) Read(ctx context.Context) ([]byte, error) {
+func (o *OpenPGPSignature) readSignatureRef() (err error) {
+	// signatureref
+	// XXX which takes precedence: the value of Signature from yaml or the value of Signature loaded from SignatureRef?
+	if (! o.SignatureRef.IsEmpty()) && o.SignatureRef.Exists() {
+		signatureReader, _ := o.SignatureRef.Lookup(o.Resources).ContentReaderStream()
+		defer signatureReader.Close()
+		SignatureData, readErr := io.ReadAll(signatureReader)
+		if readErr != nil {
+			return readErr
+		}
+		o.Signature = string(SignatureData)
+	}
+	return nil
+}
+
+func (o *OpenPGPSignature) DecodeSignatureBlock() (err error) {
+	slog.Info("OpenPGPSignature.DecodeSignatureBlock()", "signature", o.Signature)
+	if o.signatureBlock, err = armor.Decode(bytes.NewReader([]byte(o.Signature))); o.signatureBlock == nil || err != nil {
+		err = ErrSignatureFailedDecodingSignature
+	}
+	return
+}
+
+// Read
+// - signature(string/ref) content
+// - keyringref -> loads signing entity
+// - sourceref to generate a signature (create)
+func (o *OpenPGPSignature) Read(ctx context.Context) (yamlData []byte, err error) {
+	if len(o.Signature) < 1 {
+		if err  = o.readSignatureRef(); err != nil {
+			panic(err)
+		}
+	}
+	if err = o.DecodeSignatureBlock(); err != nil {
+		panic(err)
+	}
+	slog.Info("OpenPGPSignature.Read() - decodesignatureblock", "sourceref", o.SourceRef, "entityList", o.entityList, "signatureblock", o.signatureBlock)
+
+	// sourceref
+	if _, sourceRefStatErr := o.SourceRefStat(); sourceRefStatErr != nil {
+		return nil, sourceRefStatErr
+	}
+	slog.Info("OpenPGPSignature.Read() - sourceref", "sourceref", o.SourceRef, "entityList", o.entityList, "signatureblock", o.signatureBlock)
+
+	if err = o.SigningEntity(); err != nil {
+		return nil, err
+	}
+	slog.Info("OpenPGPSignature.Read() - reading", "sourceref", o.SourceRef, "entityList", o.entityList, "signatureblock", o.signatureBlock)
+
+
+	slog.Info("OpenPGPSignature.Read() - reading sourceref", "openpgp-signature", o)
+	if sourceRefReader, sourceRefReaderErr := o.SourceRef.Reader(); sourceRefReaderErr != nil {
+		return nil, sourceRefReaderErr
+	} else {
+		defer sourceRefReader.Close()
+		if err = o.Verify(sourceRefReader); err != nil {
+			return nil, err
+		}
+	}
+
+	o.Common.State = "present"
+
+	slog.Info("OpenPGPSignature.Read()", "openpgp-signature", o)
 	return yaml.Marshal(o)
 }

--- a/internal/resource/openpgp_signature_test.go
+++ b/internal/resource/openpgp_signature_test.go
@ -10,21 +10,208 @@ import (
 	"decl/internal/data"
 	"decl/internal/folio"
 	"decl/internal/codec"
+	"decl/internal/ext"
 	"log"
+	"io"
+	"os"
+	"bytes"
+	"github.com/ProtonMail/go-crypto/openpgp"
+	"github.com/ProtonMail/go-crypto/openpgp/armor"
+	"log/slog"
+	"path/filepath"
 )

-func NewTestUserKeys() (data.ResourceMapper, folio.URI) {
-	uri := "openpgp-keyring://TestUser1/TestUser1/testuser@rosskeen.house"
+var mockKeyRingPassphraseConfig MockConfigValueGetter = func(key string) (any, error) {
+	switch key {
+	case "passphrase":
+		return "foo", nil
+	}
+	return nil, fmt.Errorf("%w: %s", data.ErrUnknownConfigurationKey, key)
+}
+
+func DataKeyRing(uri folio.URI) (folio.ReferenceMapper[*folio.Declaration], folio.URI) {
+	var err error
+	var reader io.ReadCloser
+
+	searchPath := folio.NewSearchPath(folio.ConfigKey("system.importpath").GetStringSlice())
+
+	if u := uri.Parse().(*folio.ParsedURI); u != nil {
+		projectPath := filepath.Dir(filepath.Join(u.Hostname(), u.Path))
+		if err := searchPath.AddPath(projectPath); err != nil {
+			panic(err)
+		}
+	}
+
+	if reader, err = uri.ContentReaderStream(); err == nil {
+		keyRingDecl := folio.NewDeclaration()
+		if err = keyRingDecl.LoadReader(reader, codec.FormatYaml); err == nil {
+			keyRing := keyRingDecl.Resource()
+			testKeyRingResource := keyRing.(*OpenPGPKeyRing)
+			testKeyRingResource.KeyRingRef.FindIn(searchPath)
+
+			keyRing.UseConfig(mockKeyRingPassphraseConfig)
+			keyRing.Read(context.Background())
+			
+			if testKeyRingResource.entityList[0].PrivateKey == nil {
+				log.Fatal("Keyring does not contain a private key")
+			}
+			testKeyRingResource.Resources = folio.NewResourceMapper()
+ 			testKeyRingResource.Resources.Set(folio.URI(keyRing.URI()), keyRingDecl)
+
+			return testKeyRingResource.Resources, folio.URI(testKeyRingResource.URI())
+		}
+	}
+	log.Fatal(err)
+	return nil, ""
+}
+
+func NewTestUserKeys(name string, comment string, email string) (folio.ReferenceMapper[*folio.Declaration], folio.URI) {
+	
+	uri := fmt.Sprintf("openpgp-keyring://%s/%s/%s", name, comment, email)
 	keyRingDecl := folio.NewDeclaration()
 	keyRingDecl.NewResource(&uri)

 	ctx := context.Background()
 	declarationAttributes := fmt.Sprintf(`
-  name: TestUser1
-  comment: TestUser1
-  email: testuser@rosskeen.house
-  keyringref: file://%s/keyring.asc
-`, string(TempDir))
+  name: %s
+  comment: %s
+  email: %s
+  keyringref: file://%s/keyring_%s.asc
+`, name, comment, email, string(TempDir), name)
+
+	testKeyRing := keyRingDecl.Resource()
+	if e := testKeyRing.LoadString(declarationAttributes, codec.FormatYaml); e != nil {
+		log.Fatal(e)
+	}
+
+	testKeyRing.UseConfig(mockKeyRingPassphraseConfig)
+
+	if err := testKeyRing.Create(ctx); err != nil {
+		log.Fatal(err)
+	}
+
+	testKeyRingResource := testKeyRing.(*OpenPGPKeyRing)
+
+	if testKeyRingResource.entityList[0].PrivateKey == nil {
+		log.Fatal("Keyring does not contain a private key")
+	}
+
+        testKeyRingResource.Resources = folio.NewResourceMapper()
+        testKeyRingResource.Resources.Set(folio.URI(uri), keyRingDecl)
+
+	return testKeyRingResource.Resources, folio.URI(uri)
+}
+
+func KeyRingTestUser1() (folio.ReferenceMapper[*folio.Declaration], folio.URI) {
+	name := "TestUser1"
+	comment := "TestUser1"
+	email := "testuser@rosskeen.house"
+
+	if e := TempDir.CreateFile("keyring_TestUser1.asc", `
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+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+f5vfB5I2FtNl1wIbAwIeAQIZAQILBwIVCAMWAAIDJwcCAABiiwf/cIcIHy5KE2CP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+=BAfD
+-----END PGP PRIVATE KEY BLOCK-----
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=jBvZ
+-----END PGP PUBLIC KEY BLOCK-----
+`); e != nil {
+		log.Fatal(e)
+	}
+
+	uri := fmt.Sprintf("openpgp-keyring://%s/%s/%s", name, comment, email)
+	keyRingDecl := folio.NewDeclaration()
+	keyRingDecl.NewResource(&uri)
+
+	ctx := context.Background()
+	declarationAttributes := fmt.Sprintf(`
+  name: %s
+  comment: %s
+  email: %s
+  keyringref: file://%s/keyring_%s.asc
+`, name, comment, email, string(TempDir), name)

 	testKeyRing := keyRingDecl.Resource()
 	if e := testKeyRing.LoadString(declarationAttributes, codec.FormatYaml); e != nil {
@ -39,96 +226,277 @@ func NewTestUserKeys() (data.ResourceMapper, folio.URI) {
 		return nil, fmt.Errorf("%w: %s", data.ErrUnknownConfigurationKey, key)
 	}))
 	
-	if err := testKeyRing.Create(ctx); err != nil {
+	if _, err := testKeyRing.Read(ctx); err != nil {
 		log.Fatal(err)
 	}
-	return TestResourceMapper(func(key string) (data.Declaration, bool) {
-		return keyRingDecl, true
-	}), folio.URI(uri)

+	testKeyRingResource := testKeyRing.(*OpenPGPKeyRing)
+        testKeyRingResource.Resources = folio.NewResourceMapper()
+
+	if testKeyRingResource.entityList[0].PrivateKey == nil {
+		log.Fatal("Keyring does not contain a private key")
+	}
+
+/*
+	return TestRefMapper[*folio.Declaration](func(key string) (*folio.Declaration, bool) {
+		switch key {
+		case uri:
+			slog.Info("KEYRING", "name", name, "addr", testKeyRing.(*OpenPGPKeyRing).entityList[0].PrivateKey)
+			return keyRingDecl, true
+		}
+		return nil, false
+	}), folio.URI(uri)
+*/
+        testKeyRingResource.Resources.Set(folio.URI(uri), keyRingDecl)
+
+	return testKeyRingResource.Resources, folio.URI(uri)
+}
+
+func DataTestKeyRing(keyRingPath string) (folio.ReferenceMapper[*folio.Declaration], folio.URI) {
+
+	keyData, err := os.ReadFile(keyRingPath)
+	if err != nil {
+		panic(err)
+	}
+
+	keyring, err := openpgp.ReadArmoredKeyRing(bytes.NewReader(keyData))
+	if err != nil {
+		panic(err)
+	}
+	var name, comment, email string
+	for _, entity := range keyring {
+		for _, identity := range entity.Identities {
+			if identity.UserId != nil {
+				name = identity.UserId.Name
+				comment = identity.UserId.Comment
+				email = identity.UserId.Email
+			}
+		}
+	}
+
+
+	uri := fmt.Sprintf("openpgp-keyring://%s/%s/%s", name, comment, email)
+	keyRingDecl := folio.NewDeclaration()
+	keyRingDecl.NewResource(&uri)
+
+	ctx := context.Background()
+	declarationAttributes := fmt.Sprintf(`
+  name: %s
+  comment: %s
+  email: %s
+  keyringref: file://%s
+`, name, comment, email, keyRingPath)
+
+	testKeyRing := keyRingDecl.Resource()
+	if e := testKeyRing.LoadString(declarationAttributes, codec.FormatYaml); e != nil {
+		log.Fatal(e)
+	}
+
+	testKeyRing.UseConfig(MockConfigValueGetter(func(key string) (any, error) {
+		switch key {
+		case "passphrase":
+			return "foo", nil
+		}
+		return nil, fmt.Errorf("%w: %s", data.ErrUnknownConfigurationKey, key)
+	}))
+	
+	if _, err := testKeyRing.Read(ctx); err != nil {
+		log.Fatal(err)
+	}
+
+	testKeyRingResource := testKeyRing.(*OpenPGPKeyRing)
+        testKeyRingResource.Resources = folio.NewResourceMapper()
+
+	if testKeyRingResource.entityList[0].PrivateKey == nil {
+		log.Fatal("Keyring does not contain a private key")
+	}
+
+        testKeyRingResource.Resources.Set(folio.URI(uri), keyRingDecl)
+
+	return testKeyRingResource.Resources, folio.URI(uri)
 }

 func TestNewOpenPGPSignatureResource(t *testing.T) {
 	assert.NotNil(t, NewOpenPGPSignature())
 }

-func TestCreateSignature(t *testing.T) {
-	ctx := context.Background()
+func TestSigningEntity(t *testing.T) {
+	m, keyRingUri := NewTestUserKeys("TestUser5", "TestUser5", "testuser5@rosskeen.house")
+	assert.NotNil(t, m)
+	assert.Equal(t, folio.URI("openpgp-keyring://TestUser5/TestUser5/testuser5@rosskeen.house"), keyRingUri)
+	assert.Nil(t, TempDir.CreateFile("signing-test.txt", "test data"))
+	assert.FileExists(t, fmt.Sprintf("%s/keyring_TestUser5.asc", TempDir))

-	m, keyRingUri := NewTestUserKeys()
-
-	assert.Nil(t, TempDir.CreateFile("test.txt", "test data"))
+	testUserKeyRingResource := folio.Dereference(keyRingUri, m)
+	assert.NotNil(t, testUserKeyRingResource)
+	assert.NotNil(t, testUserKeyRingResource.Resource().(*OpenPGPKeyRing).entityList[0].PrivateKey)

 	declarationAttributes := fmt.Sprintf(`
-  keyringref: %s
-  sourceref: file://%s/test.txt
+  keyringref:
+    uri: %s
+  sourceref:
+    uri: file://%s/signing-test.txt
+`, string(keyRingUri), string(TempDir))
+
+	testSignature := NewOpenPGPSignature()
+	e := testSignature.LoadString(declarationAttributes, codec.FormatYaml)
+	assert.Nil(t, e)
+	testSignature.Resources = m
+
+	testSignature.UseConfig(MockConfigValueGetter(func(key string) (any, error) {
+		switch key {
+		case "passphrase":
+			return "foo", nil
+		}
+		return nil, fmt.Errorf("%w: %s", data.ErrUnknownConfigurationKey, key)
+	}))
+
+	assert.False(t, testSignature.KeyRingRef.IsEmpty())
+	slog.Info("TestSigningEntity", "keyringref", testSignature.KeyRingRef, "resourcemap", testSignature.Resources)
+
+	keyRingResource := testSignature.KeyRingRef.Lookup(testSignature.Resources)
+	assert.NotNil(t, keyRingResource)
+
+	ringFileStream, streamErr := keyRingResource.ContentReaderStream()
+	assert.Nil(t, streamErr)
+	assert.NotNil(t, ringFileStream)
+
+	assert.Nil(t, testSignature.SigningEntity())
+	assert.NotNil(t, testSignature.entityList)
+	assert.Len(t, testSignature.entityList, 1)
+	assert.NotNil(t, testSignature.entityList[0].PrivateKey)
+}
+
+func TestSign(t *testing.T) {
+	//ctx := context.Background()
+
+	m, keyRingUri := NewTestUserKeys("TestUser2", "TestUser2", "testuser2@rosskeen.house")
+	assert.NotNil(t, m)
+	assert.Equal(t, folio.URI("openpgp-keyring://TestUser2/TestUser2/testuser2@rosskeen.house"), keyRingUri)
+	assert.Nil(t, TempDir.CreateFile("sign-test.txt", "test data"))
+
+	declarationAttributes := fmt.Sprintf(`
+  keyringref:
+    uri: %s
+  sourceref:
+    uri: file://%s/sign-test.txt
 `, string(keyRingUri), string(TempDir))

 	testSignature := NewOpenPGPSignature()
 	testSignature.Resources = m
-	e := testSignature.LoadDecl(declarationAttributes)
+
+	assert.Nil(t, testSignature.LoadString(declarationAttributes, codec.FormatYaml))
+
+	testSignature.UseConfig(MockConfigValueGetter(func(key string) (any, error) {
+		switch key {
+		case "passphrase":
+			return "foo", nil
+		}
+		return nil, fmt.Errorf("%w: %s", data.ErrUnknownConfigurationKey, key)
+	}))
+
+	assert.Nil(t, testSignature.SigningEntity())
+
+	sourceReadStream, err := testSignature.SourceRef.Lookup(testSignature.Resources).ContentReaderStream()
+	var signatureStream, armoredWriter io.WriteCloser
+
+	assert.True(t, testSignature.SignatureRef.IsEmpty())
+
+	var signatureContent bytes.Buffer
+	signatureStream = ext.WriteNopCloser(&signatureContent)
+	defer func() { testSignature.Signature = signatureContent.String() }()
+ 
+	if armoredWriter, err = armor.Encode(signatureStream, openpgp.SignatureType, nil); err != nil {
+		err = fmt.Errorf("%w: %w", ErrArmoredWriterFailed, err)
+	}
+	defer armoredWriter.Close()
+
+	slog.Info("TESTSIGN KEYRING", "name", "TestUser2", "addr", testSignature.KeyRingRef.Lookup(testSignature.Resources).(*OpenPGPKeyRing))
+	assert.Len(t, testSignature.entityList, 1)
+	slog.Info("Signing Entity", "entity", testSignature.entityList[0])
+	assert.NotNil(t, testSignature.entityList[0].PrivateKey)
+	assert.Nil(t, testSignature.Sign(sourceReadStream, armoredWriter))
+}
+
+func TestCreateSignature(t *testing.T) {
+	ctx := context.Background()
+
+	m, keyRingUri := NewTestUserKeys("TestUser3", "TestUser3", "testuser3@rosskeen.house")
+	assert.NotNil(t, m)
+	assert.Equal(t, folio.URI("openpgp-keyring://TestUser3/TestUser3/testuser3@rosskeen.house"), keyRingUri)
+	assert.Nil(t, TempDir.CreateFile("test3.txt", "test data\n"))
+
+	declarationAttributes := fmt.Sprintf(`
+  keyringref:
+    uri: %s
+  sourceref:
+    uri: file://%s/test3.txt
+`, string(keyRingUri), string(TempDir))
+
+	testSignature := NewOpenPGPSignature()
+	testSignature.Resources = m
+
+	testSignature.UseConfig(MockConfigValueGetter(func(key string) (any, error) {
+		switch key {
+		case "passphrase":
+			return "foo", nil
+		}
+		return nil, fmt.Errorf("%w: %s", data.ErrUnknownConfigurationKey, key)
+	}))
+
+	e := testSignature.LoadString(declarationAttributes, codec.FormatYaml)
 	assert.Nil(t, e)

 	err := testSignature.Create(ctx)
 	assert.Nil(t, err)
-/*
+
 	assert.Greater(t, len(testSignature.entityList), 0)
-	assert.Contains(t, testSignature.entityList[0].Identities, "TestUser1 (TestUser1) <testuser@rosskeen.house>")
-	assert.Contains(t, testSignature.Signature, "-----END PGP PUBLIC KEY BLOCK-----")
-	assert.Contains(t, testSignature.Signature, "-----END PGP PRIVATE KEY BLOCK-----")
-*/
+	assert.Contains(t, testSignature.entityList[0].Identities, "TestUser3 (TestUser3) <testuser3@rosskeen.house>")
+	assert.NotContains(t, testSignature.Signature, "-----END PGP PUBLIC KEY BLOCK-----")
+	assert.NotContains(t, testSignature.Signature, "-----END PGP PRIVATE KEY BLOCK-----")
+	assert.Contains(t, testSignature.Signature, "-----END PGP SIGNATURE-----")
+
 }

-/*
 func TestReadSignature(t *testing.T) {
 	ctx := context.Background()

-	declarationAttributes := `
-  signature: |-
-    -----BEGIN PGP PUBLIC KEY BLOCK-----
+	assert.Nil(t, TempDir.CreateFile("read-test.txt", "test data\n"))

-    mQGNBGctCH8BDADGmdabVG6gDuSRk0razrEMEproTMT5w9zUMWH5uUeLY9eM9g5S
-    /5I062ume5jj6MIC1lq7tqJXh3Zwcv7Lf7ER1SWa1h6BGruHaF4o9GiR01FHfyVM
-    YTMTkMxFi1wnY87Mr0f+EIv1i9u2nD1o9moBXzEXT0JFFGyla8DvnblQhLhrwfNl
-    lN0L2LQJDTVnrPj4eMaFshqP2UdqNiYjR2qfLyCH/ZZhxg++G2KJhNzlkOzqZZJk
-    iYwfEUvGg/PzdCsSOYEvSureI0bF1hKBGK+RpOY0sKcvSY0xiY1YXEzJSau5cnFe
-    /mdwC7YleZiKsGOyBsbRFn7FUXM4eM7CkDISjZMmKDBzbvzgFXsUG2upgC+B7fvi
-    pTpgQxQk1Xi3+4bNQmgupJEUrP0XlIFoBVJdoTb0wcs8JUNDfc6ESZB+eA1OJdR+
-    xiag1XwN3PKcwzmoZoZ71oT/eqAOufwhWXFJ+StPqwd+BVpK1YwbG0jRagNlM/29
-    +Rzh2A70qwCcCXcAEQEAAbQwVGVzdFVzZXIgKFRlc3RVc2VyKSA8bWF0dGhld3Jp
-    Y2guY29uZkBnbWFpbC5jb20+iQHOBBMBCgA4FiEErhhqUPYtSfwcGHCb+/Evfjwu
-    gEkFAmctCH8CGwMFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AACgkQ+/EvfjwugElu
-    cwv/ZB9xlMf8C9CBOVX8nvU1HiWvmJqlvcePobQBc7Y54pWuK+giv+/SE3bEx6x/
-    Vb0aWrJ52CBod6R1YfyPW+F58W9kADIPFRkH/bXExj+WMrXZU4J8Gz5nCxECK6PB
-    CR8xh/T9lbvDt1q7JeP4+ldzZJoSLxAK6D5EeYTC8OKXVMuTgHBmwtiTC+Hyja3+
-    HV1MZwx7SnnXmX5dRtPq8z1F1shoM4UTLEaolA6r3XQKwfsP9c6LS2VUc+Yft4eN
-    6JCz9+fa/N9bMgIS6Az23JDYJWynmmPx82Y/uqiSxXL9qljOUsgR/QK9OaLL8fFH
-    UD6Ob+TnjH/cPBoESXrslFcwKZWMsAxJ9w6K/HJT+Fm+8XcbN3awoXcEtLAeKirL
-    z7borUsseCXJqY4epHfbvhx7NjhxElspY2A51l6oX4OoVyFL3163anxwzEEXgMRk
-    +pPGlzw55cq/iN48qURetgs94Vdr4HCNJFY8+CLUyNqPQHaVXA6nUndL2wqfOqwj
-    82R0uQGNBGctCH8BDAC/uHoD/vw8dOQt/cHyObaAEunN3Xy2MOtpY7TRh9AdrNKY
-    O0hEFQvllf8iEzW4WjiIXCzNyWzY53AD6k1kWg5tW0/6hLxk9YMUnUhi6MSD17zj
-    QQMR8XRUNuadVh8G0INJnvXVhgJXSQmKCn+4e6e1/gYKvHq9uEYf4N1BSazlCH/e
-    ZEhHTzI8WLtZeG+rM1wBW/3KuRrLDP9WUHamzp+0bL5OKvEhetZQZQxPr9wYccAh
-    bPU9MeatkAn6CwbeCOxUGUbwC0rzMVL3CPvOjhPFWGJaqi4H4ZdSSKN/vceXyfWh
-    CvzzJR/v0jzwJaE6sxIdIu1ylRKXN+hZ7Eqn7ZDurWgVxAH9o0jXkBNGsmZlqdRx
-    J+86/aGpSlNXZZO6o4xznV9Xd8ssuvwMLKN3qwVYEcbFOTdgeRw8dJo8fx4Y14tZ
-    RQUVPLh2iI4ykjFnBJFfOExAEKHQauLgQ6iXRsetgTb5RvUevOvIOJJTZGrqrhxt
-    7lHYlDfxS7zJL9ygldMAEQEAAYkBtgQYAQoAIBYhBK4YalD2LUn8HBhwm/vxL348
-    LoBJBQJnLQh/AhsMAAoJEPvxL348LoBJ+5oMALOv9RIyhNvyeJ4y7TLpOervh/0C
-    EfvIxYEVtDTFZlqfkuovhF1Cbgu+PP9iG2JU0FYHsNisf+1XSMKHX0DIm9gWWZaZ
-    J1CElJ4vsQ0t/4ypSrP7cZB6FokrQBcglpB9mVg0meVzCmZOJfVL+s+gCycshSZR
-    msw9Y3tN72JMAGdxHXtr1DTL3uDbl12Bz+egYNrqmugX9Jc9HiWG51XO9SDtztG0
-    KtVLcBA6X4Avc940Q4d4BofmOT4ajAAnysnR84UvTTSaAr9m/xvyKNEuS4YLysaC
-    gOG8nDFxujEkfO5FW+N1r5hFd2owt8Ige4e59wPRu5RVycPF3+JnxM70wFxQPkO3
-    lDtVTMG9vZyRkxRyKeqFo0z4msbc9WHwdvI6l/h7h2v6E6VbMe2sX/k+CxNyTPBX
-    sn7sjApKUjVpdXtHbu81ELhAbVPJPpMlkTdUwUUUfPD7uBoyRQbEQwgpbPQrEqmE
-    +aAQq8u60fWheEIG+xaV3T01zrNRUo6I7xu5kA==
-    =yFbn
-    -----END PGP PUBLIC KEY BLOCK-----
-`
+	m, keyRingUri := KeyRingTestUser1()
+	assert.NotNil(t, m)
+	assert.Equal(t, folio.URI("openpgp-keyring://TestUser1/TestUser1/testuser@rosskeen.house"), keyRingUri)
+
+	declarationAttributes := fmt.Sprintf(`
+  keyringref:
+    uri: %s
+  sourceref:
+    uri: file://%s/read-test.txt
+  signature: |-
+    -----BEGIN PGP SIGNATURE-----
+    
+    iQEzBAABCgAdFiEEAM6cDwBqHcVfKX+b3weSNhbTZdcFAmhQtmMACgkQ3weSNhbT
+    ZddNPAf/ZSKVOUXVlIBgXMsw2RqVWYkOzyuWADeOq6P1UHlRN0xxSmOFnHukxstL
+    zTa7KSpf5y3/DKRSTWldAy8WYFr0mx5hoDy5c83OYZo2oUtFsVYifol4JfZeF+ij
+    6a2trW17VjtKYzwpSTt/SAaTxKj/6oVevpWykOPfg6V3CCLfnVEuBMhotU91ngbg
+    wh3R3K7LrVVJ6kYI4RKUeBIx280JZMG0sZ/AuwUdWG6KFavGMbHVzHHD2PMwT53t
+    xJ5kzWyS9ZWws8r/B33GM9szHplXulhETsd1S3x0/R2MoVcHeAaAa6JwD0y0Kxu6
+    MuQM3twP32lK4UUqNx4oPHzU5gbirA==
+    =+dVO
+    -----END PGP SIGNATURE-----
+` , string(keyRingUri), string(TempDir))

 	testSignature := NewOpenPGPSignature()
+	testSignature.Resources = m
+
+	testSignature.UseConfig(MockConfigValueGetter(func(key string) (any, error) {
+		switch key {
+		case "passphrase":
+			return "foo", nil
+		}
+		return nil, fmt.Errorf("%w: %s", data.ErrUnknownConfigurationKey, key)
+	}))
+
 	e := testSignature.LoadDecl(declarationAttributes)
 	assert.Nil(t, e)
 	y, err := testSignature.Read(ctx)
@ -136,7 +504,175 @@ func TestReadSignature(t *testing.T) {
 	assert.NotNil(t, y)

 	assert.Greater(t, len(testSignature.entityList), 0)
-	assert.Contains(t, testSignature.entityList[0].Identities, "TestUser (TestUser) <matthewrich.conf@gmail.com>")
+	assert.Contains(t, testSignature.entityList[0].Identities, "TestUser1 (TestUser1) <testuser@rosskeen.house>")
+}
+
+func TestSignatureBlock(t *testing.T) {
+	assert.Nil(t, TempDir.CreateFile("block-test.txt", "test data\n"))
+
+	m, keyRingUri := KeyRingTestUser1()
+	assert.NotNil(t, m)
+	assert.Equal(t, folio.URI("openpgp-keyring://TestUser1/TestUser1/testuser@rosskeen.house"), keyRingUri)
+
+	declarationAttributes := fmt.Sprintf(`
+  keyringref:
+    uri: %s
+  sourceref:
+    uri: file://%s/block-test.txt
+  signature: |-
+    -----BEGIN PGP SIGNATURE-----
+    
+    iQEzBAABCgAdFiEEAM6cDwBqHcVfKX+b3weSNhbTZdcFAmhQtmMACgkQ3weSNhbT
+    ZddNPAf/ZSKVOUXVlIBgXMsw2RqVWYkOzyuWADeOq6P1UHlRN0xxSmOFnHukxstL
+    zTa7KSpf5y3/DKRSTWldAy8WYFr0mx5hoDy5c83OYZo2oUtFsVYifol4JfZeF+ij
+    6a2trW17VjtKYzwpSTt/SAaTxKj/6oVevpWykOPfg6V3CCLfnVEuBMhotU91ngbg
+    wh3R3K7LrVVJ6kYI4RKUeBIx280JZMG0sZ/AuwUdWG6KFavGMbHVzHHD2PMwT53t
+    xJ5kzWyS9ZWws8r/B33GM9szHplXulhETsd1S3x0/R2MoVcHeAaAa6JwD0y0Kxu6
+    MuQM3twP32lK4UUqNx4oPHzU5gbirA==
+    =+dVO
+    -----END PGP SIGNATURE-----
+` , string(keyRingUri), string(TempDir))
+
+	testSignature := NewOpenPGPSignature()
+	testSignature.Resources = m
+
+	testSignature.UseConfig(MockConfigValueGetter(func(key string) (any, error) {
+		switch key {
+		case "passphrase":
+			return "foo", nil
+		}
+		return nil, fmt.Errorf("%w: %s", data.ErrUnknownConfigurationKey, key)
+	}))
+
+	e := testSignature.LoadDecl(declarationAttributes)
+	assert.Nil(t, e)
+	err := testSignature.DecodeSignatureBlock()
+	assert.Nil(t, err)
+}
+
+func TestVerifySignature(t *testing.T) {
+	ctx := context.Background()
+
+	assert.Nil(t, TempDir.CreateFile("verify-test.txt", "test data\n"))
+
+	m, keyRingUri := KeyRingTestUser1()
+	assert.NotNil(t, m)
+	assert.Equal(t, folio.URI("openpgp-keyring://TestUser1/TestUser1/testuser@rosskeen.house"), keyRingUri)
+
+	declarationAttributes := fmt.Sprintf(`
+  keyringref:
+    uri: %s
+  sourceref:
+    uri: file://%s/verify-test.txt
+  signature: |-
+    -----BEGIN PGP SIGNATURE-----
+    
+    iQEzBAABCgAdFiEEAM6cDwBqHcVfKX+b3weSNhbTZdcFAmhQtmMACgkQ3weSNhbT
+    ZddNPAf/ZSKVOUXVlIBgXMsw2RqVWYkOzyuWADeOq6P1UHlRN0xxSmOFnHukxstL
+    zTa7KSpf5y3/DKRSTWldAy8WYFr0mx5hoDy5c83OYZo2oUtFsVYifol4JfZeF+ij
+    6a2trW17VjtKYzwpSTt/SAaTxKj/6oVevpWykOPfg6V3CCLfnVEuBMhotU91ngbg
+    wh3R3K7LrVVJ6kYI4RKUeBIx280JZMG0sZ/AuwUdWG6KFavGMbHVzHHD2PMwT53t
+    xJ5kzWyS9ZWws8r/B33GM9szHplXulhETsd1S3x0/R2MoVcHeAaAa6JwD0y0Kxu6
+    MuQM3twP32lK4UUqNx4oPHzU5gbirA==
+    =+dVO
+    -----END PGP SIGNATURE-----
+` , string(keyRingUri), string(TempDir))
+
+	testSignature := NewOpenPGPSignature()
+	testSignature.Resources = m
+
+	testSignature.UseConfig(MockConfigValueGetter(func(key string) (any, error) {
+		switch key {
+		case "passphrase":
+			return "foo", nil
+		}
+		return nil, fmt.Errorf("%w: %s", data.ErrUnknownConfigurationKey, key)
+	}))
+
+	e := testSignature.LoadDecl(declarationAttributes)
+	assert.Nil(t, e)
+	y, err := testSignature.Read(ctx)
+	assert.Nil(t, err)
+	assert.NotNil(t, y)
+
+	assert.Greater(t, len(testSignature.entityList), 0)
+	assert.Contains(t, testSignature.entityList[0].Identities, "TestUser1 (TestUser1) <testuser@rosskeen.house>")
+	assert.Equal(t, "DF07923616D365D7", fmt.Sprintf("%X", testSignature.entityList[0].PrimaryKey.KeyId))
+
+	sourceReadStream, sourceReadStreamErr := testSignature.SourceRef.ContentReaderStream()
+	assert.Nil(t, sourceReadStreamErr)
+	
+	assert.Nil(t, testSignature.DecodeSignatureBlock())
+	assert.Nil(t, testSignature.Verify(sourceReadStream))
+	sourceReadStream.Close()
+
+	assert.Nil(t, testSignature.DecodeSignatureBlock())
+	sourceReadStream2, sourceReadStreamErr2 := testSignature.SourceRef.ContentReaderStream()
+	assert.Nil(t, sourceReadStreamErr2)
+
+	assert.Nil(t, testSignature.Verify(sourceReadStream2))
+}
+
+func TestVerifyDocumentSignature(t *testing.T) {
+	ctx := context.Background()
+
+	assert.Nil(t, TempDir.CreateFile("verify-test.txt", "test data\n"))
+
+	m, keyRingUri := DataKeyRing("file://../../tests/data/openpgp-keyring/keyring_jx.yaml")
+
+	assert.NotNil(t, m)
+	assert.Equal(t, folio.URI("openpgp-keyring://TestUser1/TestUser1/testuser@rosskeen.house"), keyRingUri)
+
+	// load a document
+	docURI := folio.URI("file://../../examples/signed/ubuntu-dev-read.jx.yaml")
+	r, readerErr := docURI.ContentReaderStream()
+	assert.Nil(t, readerErr)
+	assert.NotNil(t, r)
+	doc := folio.DocumentRegistry.NewDocument(docURI)
+	assert.Nil(t, doc.LoadReader(r, codec.FormatYaml))
+
+	declarationAttributes := fmt.Sprintf(`
+  keyringref:
+    uri: %s
+  sourceref:
+    uri: %s
+    type: document
+` , string(keyRingUri), string(docURI))
+
+	testSignature := NewOpenPGPSignature()
+	testSignature.Resources = m
+
+	testSignature.UseConfig(mockKeyRingPassphraseConfig)
+
+	e := testSignature.LoadDecl(declarationAttributes)
+	assert.Nil(t, e)
+
+	createErr := testSignature.Create(ctx)
+	assert.Nil(t, createErr)
+
+	assert.Greater(t, len(testSignature.entityList), 0)
+	assert.Contains(t, testSignature.entityList[0].Identities, "TestUser1 (TestUser1) <testuser@rosskeen.house>")
+
+	y, err := testSignature.Read(ctx) // XXX throws an error if no signature is present
+	assert.Nil(t, err)
+	assert.NotNil(t, y)
+
+	assert.Greater(t, len(testSignature.entityList), 0)
+	assert.Contains(t, testSignature.entityList[0].Identities, "TestUser1 (TestUser1) <testuser@rosskeen.house>")
+	assert.Equal(t, "FAED7F3BB05EF687", fmt.Sprintf("%X", testSignature.entityList[0].PrimaryKey.KeyId))
+
+	sourceReadStream, sourceReadStreamErr := testSignature.SourceRef.Reader()
+	assert.Nil(t, sourceReadStreamErr)
+	
+	assert.Nil(t, testSignature.DecodeSignatureBlock())
+	assert.Nil(t, testSignature.Verify(sourceReadStream))
+	sourceReadStream.Close()
+
+	assert.Nil(t, testSignature.DecodeSignatureBlock())
+	sourceReadStream2, sourceReadStreamErr2 := testSignature.SourceRef.Reader()
+	assert.Nil(t, sourceReadStreamErr2)
+
+	assert.Nil(t, testSignature.Verify(sourceReadStream2))

 }
-*/
+
--- a/internal/resource/pki_test.go
+++ b/internal/resource/pki_test.go
@ -12,32 +12,15 @@ _	"gopkg.in/yaml.v3"
 _	"log"
 _	"os"
 	"decl/internal/transport"
-	"decl/internal/ext"
 	"decl/internal/codec"
 	"decl/internal/data"
 	"decl/internal/folio"
+	"gitea.rosskeen.house/rosskeen.house/machine"
 	"strings"
 	"testing"
 	"path/filepath"
 )

-type TestResourceMapper func(key string) (data.Declaration, bool)
-
-func (rm TestResourceMapper) Get(key string) (data.Declaration, bool) {
-	return rm(key)
-}
-
-func (rm TestResourceMapper) Has(key string) (ok bool) {
-	_, ok = rm(key)
-	return
-}
-
-func (rm TestResourceMapper) Set(key string, value data.Declaration) {
-}
-
-func (rm TestResourceMapper) Delete(key string) {
-}
-
 type StringContentReadWriter func() (any, error)

 func (s StringContentReadWriter) ContentWriterStream() (*transport.Writer, error) {
@ -62,8 +45,28 @@ func (s StringContentReadWriter) SetParsedURI(uri data.URIParser) (error) { retu
 func (s StringContentReadWriter) URI() (string) { return "" }
 func (s StringContentReadWriter) Validate() (error) { return nil }
 func (s StringContentReadWriter) ResourceType() data.TypeName { return "" }
-func (s StringContentReadWriter) Resource() data.Resource { return nil }
+func (s StringContentReadWriter) Resource() data.Resource { return stringContentReadWriterResource { StringContentReadWriter: s } }

+type stringContentReadWriterResource struct {
+	StringContentReadWriter
+}
+	//URI() string { return "" }
+	//SetParsedURI(URIParser) error { return nil }
+func (s stringContentReadWriterResource) Type() string { return "buffer" }
+func (s stringContentReadWriterResource) StateMachine() machine.Stater { return nil }
+func (s stringContentReadWriterResource) UseConfig(config data.ConfigurationValueGetter) { return }
+	//ResolveId(context.Context) string { return }
+	//LoadString(string, codec.Format) (error) { return }
+	//Load([]byte, codec.Format) (error) { return }
+	//LoadReader(io.ReadCloser, codec.Format) (error) { return }
+func (s stringContentReadWriterResource) Apply() error { return nil }
+func (s stringContentReadWriterResource) Create(context.Context) error { return nil }
+func (s stringContentReadWriterResource) Read(context.Context) ([]byte, error) { return nil, nil }
+func (s stringContentReadWriterResource) Update(context.Context) error { return nil }
+func (s stringContentReadWriterResource) Delete(context.Context) error { return nil }
+	//Validate() error { return }
+func (s stringContentReadWriterResource) Clone() data.Resource { return nil }
+func (s stringContentReadWriterResource) SetResourceMapper(folio.ResourceMapper) { return }

 func TestNewPKIKeysResource(t *testing.T) {
 	r := NewPKI()
@ -90,29 +93,19 @@ func TestPKIEncodeKeys(t *testing.T) {
 	r.PublicKey()
 	assert.NotNil(t, r.publicKey)

-	r.Resources = TestResourceMapper(func(key string) (data.Declaration, bool) {
-		switch key {
-		case "buffer://privatekey":
-			return StringContentReadWriter(func() (any, error) {
-				w := &transport.Writer{}
-				w.SetStream(ext.WriteNopCloser(&privateTarget))
-				return w, nil
-			}), true
-		case "buffer://publickey":
-			return StringContentReadWriter(func() (any, error) {
-				w := &transport.Writer{}
-				w.SetStream(ext.WriteNopCloser(&publicTarget))
-				return w, nil
-			}), true
-		case "buffer://certificate":
-			return StringContentReadWriter(func() (any, error) {
-				w := &transport.Writer{}
-				w.SetStream(ext.WriteNopCloser(&certTarget))
-				return w, nil
-			}), true
-		}
-		return nil, false
-	})
+	r.Resources = folio.NewResourceMapper()
+
+	privateKeyBuffer := folio.NewDeclaration()
+	privateKeyBuffer.Attributes = NewMockBufferResource("privatekey", &privateTarget)
+	r.Resources.Set("buffer://privatekey", privateKeyBuffer)
+
+	publicKeyBuffer := folio.NewDeclaration()
+	publicKeyBuffer.Attributes = NewMockBufferResource("publickey", &publicTarget)
+	r.Resources.Set("buffer://publickey", publicKeyBuffer)
+
+	certKeyBuffer := folio.NewDeclaration()
+	certKeyBuffer.Attributes = NewMockBufferResource("certificate", &certTarget)
+	r.Resources.Set("buffer://certificate", certKeyBuffer)

 	r.PrivateKeyRef = folio.ResourceReference("buffer://privatekey")
 	r.PublicKeyRef = folio.ResourceReference("buffer://publickey")